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Word: ultraviolet (lookup in dictionary) (lookup stats)
Dates: during 1950-1959
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Usage:

...thin, high, outer fringe of the atmosphere, the Fort Monmouth men explained, the atoms of gas are ionized by solar ultraviolet light into positively charged nuclei and negative electrons. Theory suggested that at a certain altitude above the earth this charged plasma should have a sort of elasticity that would permit hydromagnetic waves to pass along it, rather like mechanical waves traveling along a coil spring. The Fort Monmouth scientists found that the Argus explosions started just such waves in a layer of plasma about 1,500 miles high. The waves were about 1,000 miles long, and they traveled...

Author: /time Magazine | Title: Science: Waves Around the Earth | 11/16/1959 | See Source »

...Inside the operating room, before and between operations, the floor must be swilled with this solution, the excess being removed by a wet-pickup vacuum cleaner. Ultraviolet lamp tubes girdle the operating room, high enough to offer no risk of skin burns...

Author: /time Magazine | Title: Medicine: Danger in the Hospital | 10/12/1959 | See Source »

...first abnormal cells get that way? The experts cannot agree. Columbia University's Dr. Samuel Graff expresses the current consensus: all cancerous cells are the result of mutation, and mutations can be set off by many known factors-inherited defective genes, radiation by X or gamma rays, ultraviolet light, many chemicals, including some of the huge class of hydrocarbons, physical irritation of tissues, and certainly in some animal cancers by the invasion of a virus. There may be other, still unknown factors causing mutation...

Author: /time Magazine | Title: Medicine: Cornering the Killer | 7/27/1959 | See Source »

Have the Mormons not heard that pigmentation is nature's device for filtering out ultraviolet rays? It is, then, an act of God's mercy, not vengeance...

Author: /time Magazine | Title: Letters, may 4, 1959 | 5/4/1959 | See Source »

...detect DNA and RNA, the Army team used acridine orange, a fluorochrome dye that easily unites with the nucleic acids and shines brightly under ultraviolet light. Result: the higher the cell's nucleic acid content, the more intense the fluorescence (green to yellow for DNA, red for RNA). After a few hours of training, a skilled cyto-technologist can spot malignant cells by the intensity of fluorescence he sees in his microscope...

Author: /time Magazine | Title: Medicine: Faster Cancer Detection | 5/4/1959 | See Source »

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